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Butterfly Valves
Type-55 Butterfly Valve (2″ – 10″)
Type-55 butterfly valves are quarter turn plastic valves with equal percentage type flow characteristics. They provide moderate flow control and therefore can be used for both on/off and modulating service. The Type-55 butterfly valve features an epoxy powder coated ductile cast iron body with PTFE disc and liner. The Type-55 is designed for use in applications where conventional rubber liners and thermoplastic discs would fail. Can be pneumatically or electrically actuated.
Resources:
Ideal Applications Include:
Isolation valves, control valves, chemical processing, mining
Specifications:
Sizes:
2″ – 10″
Bodies:
Epoxy powder coated ductile cast iron
Seats:
PTFE backed with Neoprene®†
† Trademark of E.l. du Pont de Nemours and Company
Seals:
Same as seating material
Models:
Wafer Style
Operators:
Lever: 2″ – 5″
Gear: 2″ – 10″
Discs:
PFTE
Stems:
Stainless steel 304
- Highly corrosion resistant PTFE disc and seat
- Epoxy powder coated ductile iron body for corrosive atmosphere or environments
- Strong but thin disc with high Cv value
- Stainless steel stem has full engagement over the entire length of the disc and is a nonwetted part, totally isolated from the media
- Only PTFE disc and PTFE seat are wetted parts
- Bubble-tight shut-off
- Rated for full vacuum service
- Locking device
- 21 position throttle plate for lever handle style